Index: snmp.c
===================================================================
--- snmp.c	(revision 216294)
+++ snmp.c	(working copy)
@@ -640,7 +640,7 @@
 	    (pdu->flags & SNMP_MSG_AUTH_FLAG) == 0)
 		return (SNMP_CODE_BADSECLEVEL);
 
-	if ((code = snmp_pdu_calc_digest(b, pdu, digest)) !=
+	if ((code = snmp_pdu_calc_digest(pdu, digest)) !=
 	    SNMP_CODE_OK)
 		return (SNMP_CODE_FAILED);
 
@@ -659,7 +659,7 @@
 	    (pdu->flags & SNMP_MSG_PRIV_FLAG) == 0)
 		return (SNMP_CODE_BADSECLEVEL);
 
-	if ((code = snmp_pdu_decrypt(b, pdu)) != SNMP_CODE_OK)
+	if ((code = snmp_pdu_decrypt(pdu)) != SNMP_CODE_OK)
 		return (SNMP_CODE_FAILED);
 
 	return (code);
@@ -869,7 +869,7 @@
 		if (pdu->security_model != SNMP_SECMODEL_USM)
 			return (SNMP_CODE_FAILED);
 
-		if (snmp_pdu_encrypt(b, pdu) != SNMP_CODE_OK)
+		if (snmp_pdu_encrypt(pdu) != SNMP_CODE_OK)
 			return (SNMP_CODE_FAILED);
 
 		if (pdu->user.priv_proto != SNMP_PRIV_NOPRIV &&
@@ -884,7 +884,7 @@
 	pdu->digest_ptr -= moved;
 
 	if (pdu->version == SNMP_V3) {
-		if ((code = snmp_pdu_calc_digest(b, pdu, pdu->msg_digest)) !=
+		if ((code = snmp_pdu_calc_digest(pdu, pdu->msg_digest)) !=
 		    SNMP_CODE_OK)
 			return (SNMP_CODE_FAILED);
 
Index: snmpcrypto.c
===================================================================
--- snmpcrypto.c	(revision 216299)
+++ snmpcrypto.c	(working copy)
@@ -87,8 +87,7 @@
 }
 
 enum snmp_code
-snmp_pdu_calc_digest(struct asn_buf *b, const struct snmp_pdu *pdu,
-    uint8_t *digest)
+snmp_pdu_calc_digest(const struct snmp_pdu *pdu, uint8_t *digest)
 {
 	uint8_t md[EVP_MAX_MD_SIZE], extkey[SNMP_EXTENDED_KEY_SIZ];
 	uint8_t key1[SNMP_EXTENDED_KEY_SIZ], key2[SNMP_EXTENDED_KEY_SIZ];
@@ -140,7 +139,7 @@
 
 static int32_t
 snmp_pdu_cipher_init(const struct snmp_pdu *pdu, int32_t len,
-    EVP_CIPHER_CTX *ctx, const EVP_CIPHER **ctype, uint8_t *piv)
+    const EVP_CIPHER **ctype, uint8_t *piv)
 {
 	int i;
 	uint32_t netint;
@@ -172,14 +171,14 @@
 }
 
 enum snmp_code
-snmp_pdu_encrypt(struct asn_buf *b, const struct snmp_pdu *pdu)
+snmp_pdu_encrypt(const struct snmp_pdu *pdu)
 {
 	int32_t err, olen;
 	uint8_t iv[SNMP_PRIV_AES_IV_SIZ];
 	const EVP_CIPHER *ctype;
 	EVP_CIPHER_CTX ctx;
 
-	err = snmp_pdu_cipher_init(pdu, pdu->scoped_len, &ctx, &ctype, iv);
+	err = snmp_pdu_cipher_init(pdu, pdu->scoped_len, &ctype, iv);
 	if (err < 0)
 		return (SNMP_CODE_EDECRYPT);
 	else if (err == 0)
@@ -200,14 +199,14 @@
 }
 
 enum snmp_code
-snmp_pdu_decrypt(struct asn_buf *b, const struct snmp_pdu *pdu)
+snmp_pdu_decrypt(const struct snmp_pdu *pdu)
 {
 	int32_t err, olen;
 	uint8_t iv[SNMP_PRIV_AES_IV_SIZ];
 	const EVP_CIPHER *ctype;
 	EVP_CIPHER_CTX ctx;
 
-	err = snmp_pdu_cipher_init(pdu, pdu->scoped_len, &ctx, &ctype, iv);
+	err = snmp_pdu_cipher_init(pdu, pdu->scoped_len, &ctype, iv);
 	if (err < 0)
 		return (SNMP_CODE_EDECRYPT);
 	else if (err == 0)
@@ -310,8 +309,8 @@
 enum snmp_code
 snmp_calc_keychange(struct snmp_user *user, uint8_t *keychange)
 {
-	int32_t i, err, rvalue[SNMP_AUTH_HMACSHA_KEY_SIZ / 4];
-	uint32_t  keylen, olen;
+	int32_t err, rvalue[SNMP_AUTH_HMACSHA_KEY_SIZ / 4];
+	uint32_t i, keylen, olen;
 	const EVP_MD *dtype;
 	EVP_MD_CTX ctx;
 
@@ -340,8 +339,7 @@
 #else /* !HAVE_LIBCRYPTO */
 
 enum snmp_code
-snmp_pdu_calc_digest(struct asn_buf *b __unused, const struct snmp_pdu *pdu,
-    uint8_t *digest __unused)
+snmp_pdu_calc_digest(const struct snmp_pdu *pdu, uint8_t *digest __unused)
 {
 	if  (pdu->user.auth_proto != SNMP_AUTH_NOAUTH)
 		return (SNMP_CODE_BADSECLEVEL);
@@ -351,7 +349,7 @@
 }
 
 enum snmp_code
-snmp_pdu_encrypt(struct asn_buf *b __unused, const struct snmp_pdu *pdu)
+snmp_pdu_encrypt(const struct snmp_pdu *pdu)
 {
 	if (pdu->user.priv_proto != SNMP_PRIV_NOPRIV)
 		return (SNMP_CODE_BADSECLEVEL);
@@ -360,7 +358,7 @@
 }
 
 enum snmp_code
-snmp_pdu_decrypt(struct asn_buf *b __unused, const struct snmp_pdu *pdu)
+snmp_pdu_decrypt(const struct snmp_pdu *pdu)
 {
 	if (pdu->user.priv_proto != SNMP_PRIV_NOPRIV)
 		return (SNMP_CODE_BADSECLEVEL);
Index: snmppriv.h
===================================================================
--- snmppriv.h	(revision 216294)
+++ snmppriv.h	(working copy)
@@ -41,10 +41,9 @@
 void snmp_pdu_init_secparams(struct snmp_pdu *, struct snmp_engine *,
     struct snmp_user *);
 
-enum snmp_code snmp_pdu_calc_digest(struct asn_buf *, const struct snmp_pdu *,
-    uint8_t *);
-enum snmp_code snmp_pdu_encrypt(struct asn_buf *, const struct snmp_pdu *);
-enum snmp_code snmp_pdu_decrypt(struct asn_buf *, const struct snmp_pdu *);
+enum snmp_code snmp_pdu_calc_digest(const struct snmp_pdu *, uint8_t *);
+enum snmp_code snmp_pdu_encrypt(const struct snmp_pdu *);
+enum snmp_code snmp_pdu_decrypt(const struct snmp_pdu *);
 
 #define DEFAULT_HOST "localhost"
 #define DEFAULT_PORT "snmp"